What is the Meaning & Definition of memory RAM

A RAM or random access is frequently used in computer science for the storage of programs and data information.
The acronym RAM in English means "Random Access Memory" and translates as "Random access memory" or, in some cases, "Directo". A memory of this type is a piece that consists of one or more chips and forming part of a computer or computer system.
The differential characteristic of this type of memory is that it is a volatile memory, i.e., that loses its data when it stops receiving power. Typically, when is the computer turned off. Thus, differs from other memories, as the ROM, which has the property of storing information regardless of the conditions of energy available.
A RAM memory, then, is a device that is used for the management of data and information incidentally with programs, and softwares. This report allows the operation of such applications and, once, off or disrupted the functioning of the system, the information is lost, since often it is not file or data stored by its relevance, but simply of data necessary for the performance of the software in question.
The memories of this kind can be divided into static and dynamic. The first keep its unchanged content provided there is a source of energy. The latter, on the other hand, involve a destructive "read", i.e., that information is lost to read it and to avoid this data with a "Refresh" operation need to be restored.
A RAM can have different sizes expressed in MegaBytes or GigaBytes, and thus allow uses of greater or lesser level. For example, the simultaneity in the use of various programs either, the incremeneto speed connection or operation of the computer.
In general, when you purchase a computer, RAM memory comes included, but often can be extended if the user wants to do a more intensive use of the same.